/*
 * Copyright (C) 2009 Kristopher T Babic
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of
 * the GNU General Public License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program;
 * if not, see <http://www.gnu.org/licenses>.
 */

package edu.idp.client.anim;

import java.util.Enumeration;

/**
 * A CollisionDetector that detects collisions between Sprites
 * residing in a CollisionArena.<p>
 *
 * @author Kristopher T Babic
 */
public class SpriteCollisionDetector extends CollisionDetector {
    public SpriteCollisionDetector(CollisionArena arena) {
        super(arena);
    }

    public void detectCollisions() {
        Enumeration sprites = arena.getSprites().elements();
        AdvancedSprite sprite;

        while (sprites.hasMoreElements()) {
            sprite = (AdvancedSprite) sprites.nextElement();

            Enumeration otherSprites =
                    arena.getSprites().elements();
            AdvancedSprite otherSprite;

            while (otherSprites.hasMoreElements()) {
                otherSprite = (AdvancedSprite) otherSprites.nextElement();

                if (otherSprite != sprite)
                    if (sprite.willIntersect(otherSprite))
                        arena.spriteCollision(sprite, otherSprite);
            }
        }
    }
}
